Tutorial of surface electromyography Part 2:Processing

Why do we need process sEMG? : Raw sEMG signal has many artifact(Motion, ECG e.t.c.). And usage of sEMG is diffrent. So we have to process Raw sEMG signals. There are so many artifact of sEMG signals. But I introduce mainly occured artifact of sEMG signals. 1. ECG noise : some part of muscle near vein can be mixed with…

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Humanoid Robot Built with 3D-Printing

I found interesting robot which is made by 3D-Printing. Source : adafruit.com Right now, all over the world, 3D printing hackers and robotics enthusiasts are printing their own Open Source sub-$1k, life-size humanoid robot from the inMoov project created by gael langevin (known on Thingiverse as hairygael). In fact, for many weeks one frequent participant in Adafruit Google+ Community, Zviad…

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OLGA(Optimized Lower-limb Gait Analysis) Explained

This article can be downloaded from Vicon hompage. It introduces the basic concepts of OLGA, the method which estimates the joint locations and relative marker locations. In also contains little descriptions on kinematic fitting of vicon software. See more details in attatched file. Introduction: OLGA (Optimized Lower-limb Gait Analysis) was introduced in 2003 as a plug-in which works with the…

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Underactuated Humanoid Robot Hands

I found this article from IEEE Spectrum. This hand named as Azzurra uses special kind of underactuated mechanism(only 5 motors can actuate total 11 Dof) and which is known as Hirose’s mechanism. By using that kind of mechanism, the key feature of Azzurra is a self-contained structure. That is, all functional components including motors, sensors and controller are integrated in…

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Disney Robots

Do you know robots from Disney? Beyond the animation technologies, entertainment robots are continually developed by Disney for the show and amusements in theme parks in the tradition of animatronics. For one example, Lucky the Dinosaur walks around the theme park with its usher carefully, and makes apposite gestures that it seems to be surprise, sad, angry, curious, and laugh.…

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How to calculate joint kinematics using motion capture data?

The presentation shows the way to calculate joint kinematics using motion capture data. There are two methods to get the joint kinematics using different software; Vicon Nexus with Plug-in-Gait Model and OpenSim. The slides explain the detail calculation for Plug-in-Gait Model and OpenSim processing. This presentation is made by Sumin Park.

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This Robot’s Acrobatic Leaps Are the Coolest Thing You’ll See Today

 I found this article from IEEE Spectrum website, this robot was presented at ICRA this year by Aaron M. Johnson fro m the University of Pennsylvania’s Kod Lab. which has a unique legs structure caught my interest.  Legs have an advantage over wheels when it comes to rough terrain, but the articulated legs often found on walking robots require complex, specialized…

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Introduction of Screw theory

Today, I introduce some concept of Screw theory. so then I prepared ppt slide. If u have a question, please leave a comment below!

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